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For the Inventor, By the Inventor

Düsseldorf, Germany

Rolf Putter

This inventor holds 15 USPTO granted patents. Top assignee: Bayer Aktiengesellschaft. Active years: 1976-1983.

USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 6

Forward Citations = 103(Granted Patents)


Location History:

  • Dusseldorf, DE (1978)
  • Duesseldorf, DE (1976 - 1983)

Company Filing History:

goldMedal15 out of 12,223 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1976-1983

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15 patents (USPTO):Explore Patents
1. 4377535 - Process for the preparation of nitro-T-acid (1983-03-22),
2. 4375562 - Process for the preparation of bis-(amino-phenyl)-disulphides (1983-03-01),
3. 4341719 - Process for the preparation of 1-amino-2-ethoxy-naphthalene-6-sulphonic (1982-07-27),
4. 4180521 - Process for the preparation of naphthalene-1,3,6-trisulphonic acid (1979-12-25),
5. 4178308 - Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (1979-12-11),
6. 4166826 - Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (1979-09-04),
7. 4137238 - Process for the preparation of 2-hydroxycarbazoles (1979-01-30),
8. 4094861 - Process for the production of non-inflammable polytriazines (1978-06-13),
9. 4094852 - Process for the production of polytriazines in the presence of (1978-06-13),
10. 4091013 - Process for preparing 1-amino-naphthalene-7-sulphonic acid (1978-05-23),
11. 4049630 - Process for preparation of s-triazine prepolymers (1977-09-20),
12. 4046796 - Process for the production of polyfunctional cyanic acid esters (1977-09-06),
13. 4028393 - Process for the production of polyfunctional cyanic acid esters (1977-06-07),
14. 3978028 - Process for preparing s-triazine prepolymers by condensation of an (1976-08-31),
15. 3931255 - Process for the production of 5-nitro-1,4-naphthoquinone (1976-01-06),

Title: Rolf Putter: Innovator in Chemical Processes

Introduction

Rolf Putter is a distinguished inventor based in Düsseldorf, Germany. He has made significant contributions to the field of chemistry, particularly in the development of processes for the preparation of various chemical compounds. With a total of 15 patents to his name, Putter's work has had a notable impact on the industry.

Latest Patents

Among his latest patents is a process for the preparation of nitro-T-acid. This innovative process involves the nitration of naphthalene-1,3,6-trisulphonic acid from a nitration mixture that has reacted to at least 80%. Nitro-T-acid serves as an intermediate for the preparation of H-acid, which is essential in the production of dyestuffs. Another significant patent is for the preparation of bis-(amino-phenyl)-disulphides. This process involves contacting an amino-thiophenol with sulfur or a sulfur-donating substance in an aqueous dispersion at controlled temperatures and pH levels.

Career Highlights

Rolf Putter is currently associated with Bayer Aktiengesellschaft, a leading global company in the pharmaceutical and life sciences sector. His work at Bayer has allowed him to explore and develop innovative chemical processes that contribute to the company's research and product development efforts.

Collaborations

Throughout his career, Putter has collaborated with notable colleagues, including Rudolf Sundermann and Ernst Grigat. These collaborations have fostered a productive environment for innovation and have led to the successful development of various chemical processes.

Conclusion

Rolf Putter's contributions to the field of chemistry through his patents and innovative processes highlight his role as a key inventor in the industry. His work continues to influence the development of important chemical compounds and processes.

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